Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/57761",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5ee4ba91-3c50-42cb-83c7-eb524c67a06e",
      "cw-ee80d543-ab1f-47e7-b43a-fbff4a982de7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-beb940e0-1343-4801-8a25-12131059ddc5",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/57761",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ee80d543-ab1f-47e7-b43a-fbff4a982de7"
  }
}